238. EXPLANATION OF THE. PLATES, 
PLATE THE SECOND. 
Roots. — 
Fig. 1. Orchis militaris. Orchidee. Root scrotiform. 
a. Old tuber, that. sent up and nourished the stem of 
the preceding season. 
t. New tuber, that sent up and nourished the present 
year’s stem. 
c. Fibrous radicles. 
Fig. 2. Arum Italicum. Aroidee. Root progressive, 
tuberous.—a. Turions. 
Fig. 3. Neottia abortiva. Orchidee. Root grumous. 
Fig. 4. Gratiola officinalis. Scrofularine, Root: hori- 
zontal, progressive, jointed, fibrous at the joints. This 
root, or rhizoma, formed by the base of the stem, is fre- 
quently kneed.. 
Fig. 5. Arrhenatherum elatius. Graminee. Root knotty, 
jointed, comose at the joints.—This root is formed by the 
base of the culm, the joints of which are swollen. 
Fig.6. Helianthus tuberosus. Composite. Root fibrous 
and. tubercular. 
Fig.7. Succisa Fuchsii.. Dipsacee. Root bitten, and 
having fibrous radicles. 
Fig. 8, Ixia polystachia. Iridee. Root fibrous, bulb- 
bearing.—a. Bulb placed above, coated. 
Fig.9. Asphodelus ramosus. Asphodelee. Root fasci- 
culate. 
Fig. 10. Saxifraga granulata. Saxifragee. Root co- 
mose, bulbille-bearing; bulbilles scaly. : 
Fig.11. Allium nutans. Asphodelee. Root progressive, 
bulb-bearing at a, seal-like at 4, fibrous at d. 
